Ultra Pure High-Potency 5.01% Niacinamide Serum

Description

AQUA, NIACINAMIDE (Vitamin B3), GLYCERIN, PROPANEDIOL, METHYL GLUCETH-20, HYDROXYACETOPHENONE, SODIUM HYALURONATE (Hyaluronic acid), CAPRYLYL GLYCOL, CARBOMER, SODIUM HYDROXIDE

My Doctor's Diagnosis: Analysis and Target

Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum is primarily intended for skin prone to blemishes, excess oil, and enlarged pores. Its minimalist formula, concentrated in niacinamide, effectively targets skin imbalances while being suitable for sensitive skin thanks to the absence of fragrance and irritants. In my opinion, this product is part of a pure skincare approach, focused on correcting uneven skin tone and regulating sebum production.

Formula Analysis: Key Assets

Niacinamide (vitamin B3) is the star ingredient in this serum. It works by strengthening the skin barrier, regulating sebum production, and reducing redness and pigmentation spots. Glycerin, a recognized humectant, ensures optimal hydration by attracting water to the surface layers of the skin. Finally, sodium hyaluronate (hyaluronic acid) completes the formula by providing a plumping and moisturizing effect. The combination of these active ingredients gives the product a noticeable effect on skin texture, mattness, and radiance.

Tips and Application Ritual

I recommend applying this serum in the morning and/or evening, on clean, dry skin, before moisturizer. It is compatible with most active ingredients, including moisturizers and antioxidants. However, I do not recommend using it at the same time as products that are highly concentrated in exfoliating acids (AHAs/BHAs) or pure vitamin C, in order to avoid any risk of irritation.

My Final Verdict & Safety Opinion

This serum stands out for its short formula, highly concentrated in niacinamide, and its excellent skin tolerance. Its light texture penetrates quickly without leaving a greasy film. One slight drawback could be the absence of fragrance, which, although beneficial for sensitive skin, may surprise some users who are accustomed to more sensory skincare products. In conclusion, this is a safe and effective choice for improving skin quality on a daily basis.